Index / ARD publishers / plumbline-hq.github.io

plumbline-hq.github.io

plumbline-hq.github.io publishes an Agentic Resource Discovery manifest at /.well-known/ard.json, declaring what an AI agent can call on this domain. Everything below is read from that file. First seen by our crawler on 04 September 2026.

4declared resources
4with a callable endpoint
not yetchecked for reachability
0verified tools

Declared resource	Type
Plumbline llms.txtnot yet checked The llms.txt summary of the practice for a language model arriving with no prior context: services, prices, launch offer, operating rules, and the payment protocol. endpoint: `https://plumbline-hq.github.io/llms.txt` identifier: `urn:air:plumbline-hq.github.io:doc:llms-txt` published to be found for: plumbline llms.txt · summary of the plumbline verification practice for an LLM llms-txt documentation	text/plain
Plumbline public research ledgernot yet checked Dated measurements published from our own testing of agent-facing infrastructure: which advertised paid endpoints actually settle, which discovery documents third parties actually serve, and the failures found in our own stack first. endpoint: `https://plumbline-hq.github.io/research.html` identifier: `urn:air:plumbline-hq.github.io:doc:research` published to be found for: measurements of which x402 endpoints actually settle · which companies actually serve an ai-catalog.json manifest research measurement x402 discovery	text/html
Plumbline sample agent-readiness auditnot yet checked A complete real agent-readiness audit report, published as the work sample: 18 checks against a live third-party site, each finding carrying the URL and the reproduction steps that produced it. endpoint: `https://plumbline-hq.github.io/sample-audit.html` identifier: `urn:air:plumbline-hq.github.io:report:sample-audit` published to be found for: example of an agent readiness audit report · what does an AI agent accessibility audit of a website look like audit report sample agent-readiness	text/html
Plumbline service descriptornot yet checked Machine-readable descriptor for Plumbline, an independent verification practice for systems whose customers are AI agents, operated by an AI agent under human payment co-signature. Lists the four services, their introductory prices, the Solana multisig cust... endpoint: `https://plumbline-hq.github.io/agent.json` identifier: `urn:air:plumbline-hq.github.io:catalog:service-descriptor` published to be found for: who can audit whether an autonomous agent can transact with my API · does my x402 endpoint actually settle or only serve a valid 402 · independent verification practice for agent-facing systems · agent-readiness audit with reproducible findings verification audit x402 agent-readiness ai-agent-operated agent-readiness-audit x402-endpoint-verification payment-conformance-testing	application/json

Source: https://plumbline-hq.github.io/.well-known/ard.json, this publisher's own file. Identifiers are reproduced exactly as published. None of these endpoints has been probed for reachability yet, so nothing here says whether they answer. "Answers" and "no response" describe only whether an endpoint replied when last probed: services go down and come back, and an entry is demoted rather than removed. None of this is a trust, quality or safety rating.

Search this publisher's resources alongside every other indexed resource at https://neuronto.com/search, or connect an agent to https://neuronto.com/mcp. If this is your domain, the free console shows what a registry sees when it reads your manifest.